4-chloro-5-methyl-2,3-dihydropyridazin-3-one CAS 1638764-84-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1638764-84-7 |
| Molecular Formula | C5H9ClN2O |
| Molecular Weight | 148.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-chloro-5-methyl-2,3-dihydropyridazin-3-one (CAS 1638764-84-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H9ClN2O. Molecular weight: 148.59 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H9ClN2O |
| Molecular Weight | 148.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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